INFICON Shareholders Approve Dividend Payment and All Proposals at Annual General Meeting

Share Repurchase Program to Begin on May 3, 2007

Zurich/Schweiz and Syracuse/New York— April 27, 2007 —INFICON Holding AG (SWX Swiss Exchange: IFCN), a leading manufacturer of instrumentation and process control software for the semiconductor and vacuum-coating industries and other industrial applications, today announced that its shareholders, voting at the company's Annual General Meeting in Thalwil, Switzerland, approved all resolutions proposed by the Board of Directors. This includes approval to distribute a gross dividend of CHF 6.00 per registered share of CHF 5.00 par value for the business year 2006, a 20% increase over the dividend for 2005, with a payment and ex-dividend date of May 3, 2007. In addition, Gustav Wirz and Dr. Thomas Staehelin were re-elected to the Board of Directors for a three-year term.

Commencement of Share Repurchase Program Beginning Thursday, May 3, 2007, INFICON will begin a stock buyback program on a special second trading line on the SWX Swiss Exchange, up to a maximum value of CHF 40 million and not exceeding 10% of the registered share capital. The share repurchase program will end by December 31, 2007. The Board of Directors intends to propose the cancellation of all repurchased shares at the Annual General Meeting in 2008. Other details on the capital buy-back program will be published in an advertisement in Neue Zürcher Zeitung and Le Temps on May 3, 2007.

ABOUT INFICON
INFICON is a leading developer, manufacturer and supplier of innovative instrumentation, critical sensor technologies, and advanced process control software for the semiconductor and vacuum-coating industries and other industrial applications. These analysis, measurement and control products are vital to original equipment manufacturers (OEMs) and end-users in the complex manufacturing of semiconductors, flat panel displays, magnetic and optical storage media and precision optics. INFICON also provides essential instrumentation for gas leak detection to the air conditioning/refrigeration industries and toxic chemical analysis for the emergency response and security markets. INFICON has world-class manufacturing facilities in the United States and Europe and subsidiaries in the U.S., China, France, Germany, Japan, Korea, Liechtenstein, Singapore, Switzerland, Taiwan, and the United Kingdom. INFICON registered shares (IFCN) are listed on the SWX Swiss Stock Exchange. For more information about INFICON and its products, please visit www.inficon.com.

This press release and oral statements or other written statements made, or to be made, by us contain forward-looking statements that do not relate solely to historical or current facts. These forward-looking statements address, among other things, our strategic objectives, trends in vacuum technology and in the industries that employ vacuum instrumentation, such as the semiconductor and related industries and the anticipated effects of these trends on our business. These forward-looking statements are based on the current plans and expectations of our management and are subject to a number of uncertainties and risks that could significantly affect our current plans and expectations, as well as future results of operations and financial condition. Some of these risks and uncertainties are discussed in the company's Annual Report for fiscal 2006. As a consequence, our current and anticipated plans and our future prospects, results of operations and financial condition may differ from those expressed in any forward-looking statements made by or on behalf of our company. We undertake no obligation to publicly update or revise any forward-looking statements, whether as a result of new information, future events or otherwise.

Corporate Contact
Betty Ann Kram
Director of Global Communications
+1.315.434.1122
BettyAnn.Kram@inficon.com

European Contact
Bernhard Schweizer
sensus PR GmbH
+41.43.366.5511
inficon@sensus.ch